DHANKUTA: Headteacher Naresh Limbu of Shree Panchami Primary School in Khuwaphok-9 of the district was found murdered this morning. A gang of around seven members attacked him with a sharp weapon to death, said police. Reason behind the attack is yet to come out. Meanwhile, police have arrested three people in suspicion of their involvement in the murder. Further investigation into the case is underway, police said.